.all{
    width: 286px;
    margin-left: auto;
    margin-right: auto;
}
.out-box{
    margin-top: 10px;
    width: 300px;
    height: 64px;
    /*background-color: #aebbbb;*/
    margin-left: auto;
    margin-right: auto;
}
.item{
    width: 64px;
    height: 64px;
    margin-right: 10px;
    background-color: #ededed;
    display: inline-block;
}
.btn{
    width:100%;
}
.btn-start{
    height: 34px;margin-bottom: 10px
}
.btn-in{
    height: 20px
}
#one,#two,#thr{
    background-image: url(../img/item.png);
}